CaltechAUTHORS
  A Caltech Library Service

Barioperovskite, BaTiO_3, a new mineral from the Benitoite Mine, California

Ma, Chi and Rossman, George R. (2008) Barioperovskite, BaTiO_3, a new mineral from the Benitoite Mine, California. American Mineralogist, 93 (1). pp. 154-157. ISSN 0003-004X. doi:10.2138/am.2008.2636. https://resolver.caltech.edu/CaltechAUTHORS:20130501-104955382

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20130501-104955382

Abstract

Barioperovskite, ideally BaTiO_3, is a new member of the perovskite group. It is found as micro- to nano-crystals in a host of amorphous material contained within hollow, tubular inclusions in benitoite from the Benitoite Mine, San Benito County, California, U.S.A. The mean chemical composition determined by electron-microprobe analysis is (wt%) BaO 65.46, TiO_2 34.57, SiO_2 0.89, sum 100.92. The empirical formula calculated on the basis of 3 O is Ba_(0.97)Ti_(0.98)Si_(0.03)O3. Barioperovskite is orthorhombic, Amm2; a = 3.9874 Å, b = 5.6751 Å, c = 5.6901 Å, V = 128.76 Å3, and Z = 2. The electron backscattered diffraction pattern is an excellent match to that of synthetic BaTiO_3 with the Amm2 structure. The strongest calculated X-ray powder diffraction lines from the synthetic BaTiO_3 data are [d in Å, (I), hkl] 4.018 (18) (011), 2.845 (30) (002), 2.830 (100) (111), 2.316(20) (102), 2.312 (23) (120), 2.009 (28) (022), 1.640 (17) (113), 1.637 (19) (131), 1.633 (18) (202), and 1.415 (15) (222). The mineral is named after its composition, a Ba-dominant member of the perovskite group.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.2138/am.2008.2636DOIUNSPECIFIED
http://ammin.geoscienceworld.org/content/93/1/154PublisherUNSPECIFIED
ORCID:
AuthorORCID
Ma, Chi0000-0002-1828-7033
Rossman, George R.0000-0002-4571-6884
Additional Information:© 2008 American Mineralogist. Manuscript received March 16, 2007. Manuscript accepted September 11, 2007. Manuscript handled by Sergey Krivovichev. This work was funded, in part, through grant EAR-0337816 from the U.S. National Science Foundation and, in part, by the White Rose Foundation. The Caltech GPS Analytical Facility is supported, in part, by grant NSF EAR-0318518. We thank Anton Chakhmouradian and an anonymous reviewer for their constructive reviews.
Funders:
Funding AgencyGrant Number
NSFEAR-0337816
White Rose FoundationUNSPECIFIED
NSFEAR-0318518
Subject Keywords:Barioperovskite, new mineral, barium titanate, perovskite group, Benitoite Mine, BaTiO3, BaTi2O5, BaTi3O7
Issue or Number:1
DOI:10.2138/am.2008.2636
Record Number:CaltechAUTHORS:20130501-104955382
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130501-104955382
Official Citation: Chi Ma and George R. Rossman Barioperovskite, BaTiO3, a new mineral from the Benitoite Mine, California American Mineralogist, January, v. 93, p. 154-157, doi:10.2138/am.2008.2636
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38207
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:01 May 2013 18:05
Last Modified:09 Nov 2021 23:36

Repository Staff Only: item control page